What is the boiling point elevation constant of ethanol if a solution prepared by dissolving 52.00 g of glycerin (C3H8O3, 92.11 g/mol) in 202.0 g of ethanol (C₂H6O. 46.08 g/mol) has a boiling point change of 2.803 °C? Record your answer to 3 decimal places and NO units
What is the boiling point elevation constant of ethanol if a solution prepared by dissolving 52.00 g of glycerin (C3H8O3, 92.11 g/mol) in 202.0 g of ethanol (C₂H6O. 46.08 g/mol) has a boiling point change of 2.803 °C? Record your answer to 3 decimal places and NO units
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:What is the boiling point elevation constant of ethanol if a solution prepared by
dissolving 52.00 g of glycerin (C3H8O3, 92.11 g/mol) in 202.0 g of ethanol (C₂H60,
46.08 g/mol) has a boiling point change of 2.803 °C? Record your answer to 3
decimal places and NO units
Expert Solution
Step 1C
The relationship between elevation in boiling point (∆Tb) and molality (m) of solution is given by the formula
∆Tb = kb×m
kb = boiling point elevation constant
w = weight of solute
GMW = gram molecular weight of solute
W = weight of solvent in Kg
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